package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /*
        1、将页面提交的密码password进行md5加密处理
        2、根据页面提交的用户名username查询数据库
        3、如果没有查询到则返回登录失败结果
        4、密码比对，如果不一致则返回登录失败结果
        5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        6、登录成功，将员工id存入Session并返回登录成功结果

    */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //根据用户名查询数据库
        LambdaQueryWrapper<Employee> lambdaQueryWrapper = new LambdaQueryWrapper();
        lambdaQueryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(lambdaQueryWrapper);
        //如果没有查询到则返回登录失败结果
        if (emp == null) {
            return R.error("登陆失败");
        }
        //密码比对
        if (!emp.getPassword().equals(password)) {
            return R.error("登陆失败");
        }
        //查看员工状态
        if (emp.getStatus() == 0) {
            return R.error("账号已禁用");
        }
        //登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理session中保存的员工id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    @PostMapping
    public R<String> save(@RequestBody Employee employee, HttpServletRequest request) {
        log.info("新增员工,员工信息：{}", employee.toString());
        //设置初始密码123456（md5加密）
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        //获得当前登录用户id
        Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setCreateUser(empId);
        employee.setUpdateUser(empId);
        employeeService.save(employee);
        return R.success("新增员工成功");
    }

    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page = {},pageSize = {},name= {}", page, pageSize, name);
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        LambdaQueryWrapper<Employee> wrapper = new LambdaQueryWrapper<>();
        wrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);
        wrapper.orderByDesc(Employee::getUpdateTime);
        employeeService.page(pageInfo, wrapper);
        return R.success(pageInfo);
    }

    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee) {
        log.info(employee.toString());

        long id = Thread.currentThread().getId();
        log.info("线程id为:{}",id);

       // Long empId = (Long) request.getSession().getAttribute("employee");
      //  employee.setUpdateTime(LocalDateTime.now());
       // employee.setUpdateUser(empId);

        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息...");
        Employee employee = employeeService.getById(id);
        return R.success(employee);

    }





}
